How do you evaluate a java.lang.String in clojure

Question

How would I eval to the following?

(defn run-clojure-func []
  (println "welcome"))

(defn -main [& args]
  (eval (*func* (first args)))

java exam.Hello "run-clojure-func"

Sorry, I don't understand the question. Can you ask in words? What is -main supposed to do? — John Lawrence Aspden
– John Lawrence Aspden, Commented Oct 5, 2010 at 7:12

cemerick · Accepted Answer · 2010-10-05 04:12:39Z

7

Two versions for you to consider – entirely equivalent, but useful as points of comparison:

(defn -main [& args]
  ((-> args first symbol resolve)))

and this, using destructuring and no -> macro usage:

(defn -main [[fn-name]]
  ((resolve (symbol fn-name))))

resolve is obviously the key. The docs are your friend. :-) Also, as an unfair generalization, eval is almost never necessary.

answered Oct 5, 2010 at 4:12

cemerick

5,9245 gold badges33 silver badges52 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1